/Engine/Source/Runtime/UMG/Public/Blueprint/WidgetBlueprintLibrary.h
Gets the material that allows changes to parameters at runtime. The brush must already have a material assigned to it, if it does it will automatically be converted to a MID.
A material that supports dynamic input from the game.
static [UMaterialInstanceDynamic](API\Runtime\Engine\Materials\UMaterialInstanceDynamic) * GetDynamicMaterial ( [FSlateBrush](API\Runtime\SlateCore\Styling\FSlateBrush) & Brush )